Donald Trump nominated the retired general to lead negotiations for ending the war started by Russian President Vladimir Putin.

Donald Trump picked retired General Keith Kellogg as his special envoy for Ukraine and Russia, choosing a longtime adviser who’s supported the president-elect’s aims to end the war swiftly, including by potentially cutting off military aid to Kyiv.

Donald Trump has tapped Keith Kellogg, a retired lieutenant general who presented him with a plan to end the war in Ukraine, to serve as a special envoy for the conflict, the president-elect wrote on Truth Social on Wednesday.